EP1581323A1 - Process for catalyst recovery from hydrocyanation product mixtures - Google Patents
Process for catalyst recovery from hydrocyanation product mixturesInfo
- Publication number
- EP1581323A1 EP1581323A1 EP04700629A EP04700629A EP1581323A1 EP 1581323 A1 EP1581323 A1 EP 1581323A1 EP 04700629 A EP04700629 A EP 04700629A EP 04700629 A EP04700629 A EP 04700629A EP 1581323 A1 EP1581323 A1 EP 1581323A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- alkyl
- organic
- diphosphite
- process according
- group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000005669 hydrocyanation reaction Methods 0.000 title claims description 15
- 239000003054 catalyst Substances 0.000 title description 44
- 238000011084 recovery Methods 0.000 title description 28
- ZJIPHXXDPROMEF-UHFFFAOYSA-N dihydroxyphosphanyl dihydrogen phosphite Chemical compound OP(O)OP(O)O ZJIPHXXDPROMEF-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000000605 extraction Methods 0.000 claims abstract description 35
- 239000003446 ligand Substances 0.000 claims abstract description 26
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 20
- 150000001875 compounds Chemical class 0.000 claims abstract description 16
- 229920005989 resin Polymers 0.000 claims abstract description 14
- 239000011347 resin Substances 0.000 claims abstract description 14
- 239000002904 solvent Substances 0.000 claims abstract description 14
- 238000000622 liquid--liquid extraction Methods 0.000 claims abstract description 11
- 238000000638 solvent extraction Methods 0.000 claims abstract description 11
- -1 Lewis base compound Chemical class 0.000 claims abstract description 10
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000002841 Lewis acid Substances 0.000 claims abstract description 9
- 239000002879 Lewis base Substances 0.000 claims abstract description 9
- 150000007517 lewis acids Chemical class 0.000 claims abstract description 9
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 7
- 150000001335 aliphatic alkanes Chemical class 0.000 claims abstract description 5
- 150000001924 cycloalkanes Chemical class 0.000 claims abstract description 5
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract 5
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims abstract 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims abstract 4
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 claims abstract 2
- 229930003836 cresol Natural products 0.000 claims abstract 2
- 125000002256 xylenyl group Chemical class C1(C(C=CC=C1)C)(C)* 0.000 claims abstract 2
- 125000000217 alkyl group Chemical group 0.000 claims description 21
- 125000003545 alkoxy group Chemical group 0.000 claims description 8
- 125000003118 aryl group Chemical group 0.000 claims description 7
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 6
- 229920001429 chelating resin Polymers 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 5
- 125000006539 C12 alkyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 229910052717 sulfur Inorganic materials 0.000 claims description 4
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 3
- 150000003973 alkyl amines Chemical class 0.000 claims description 2
- 125000001624 naphthyl group Chemical group 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims 2
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 claims 1
- 125000005265 dialkylamine group Chemical group 0.000 claims 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims 1
- 125000005270 trialkylamine group Chemical group 0.000 claims 1
- 238000002203 pretreatment Methods 0.000 abstract 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 35
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 14
- 239000012071 phase Substances 0.000 description 10
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 8
- 239000007788 liquid Substances 0.000 description 7
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 229910052759 nickel Inorganic materials 0.000 description 6
- 238000011282 treatment Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 230000002401 inhibitory effect Effects 0.000 description 4
- ISBHMJZRKAFTGE-UHFFFAOYSA-N pent-2-enenitrile Chemical compound CCC=CC#N ISBHMJZRKAFTGE-UHFFFAOYSA-N 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- FSCUUKMZJSUUAR-UHFFFAOYSA-N [Ni+4].[O-]P([O-])OP([O-])[O-] Chemical compound [Ni+4].[O-]P([O-])OP([O-])[O-] FSCUUKMZJSUUAR-UHFFFAOYSA-N 0.000 description 3
- BTGRAWJCKBQKAO-UHFFFAOYSA-N adiponitrile Chemical compound N#CCCCCC#N BTGRAWJCKBQKAO-UHFFFAOYSA-N 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 3
- 125000005538 phosphinite group Chemical group 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 150000007514 bases Chemical class 0.000 description 2
- 230000005587 bubbling Effects 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 2
- UVKXJAUUKPDDNW-NSCUHMNNSA-N (e)-pent-3-enenitrile Chemical compound C\C=C\CC#N UVKXJAUUKPDDNW-NSCUHMNNSA-N 0.000 description 1
- CFEYBLWMNFZOPB-UHFFFAOYSA-N Allylacetonitrile Natural products C=CCCC#N CFEYBLWMNFZOPB-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- NFGODEMQGQNUKK-UHFFFAOYSA-M [6-(diethylamino)-9-(2-octadecoxycarbonylphenyl)xanthen-3-ylidene]-diethylazanium;chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCCOC(=O)C1=CC=CC=C1C1=C2C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C21 NFGODEMQGQNUKK-UHFFFAOYSA-M 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- JYNZIOFUHBJABQ-UHFFFAOYSA-N allyl-{6-[3-(4-bromo-phenyl)-benzofuran-6-yloxy]-hexyl-}-methyl-amin Chemical compound C=1OC2=CC(OCCCCCCN(C)CC=C)=CC=C2C=1C1=CC=C(Br)C=C1 JYNZIOFUHBJABQ-UHFFFAOYSA-N 0.000 description 1
- 150000004982 aromatic amines Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- B01J31/18—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes containing nitrogen, phosphorus, arsenic or antimony as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms
- B01J31/1845—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes containing nitrogen, phosphorus, arsenic or antimony as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms the ligands containing phosphorus
- B01J31/185—Phosphites ((RO)3P), their isomeric phosphonates (R(RO)2P=O) and RO-substitution derivatives thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/04—Solvent extraction of solutions which are liquid
- B01D11/0426—Counter-current multistage extraction towers in a vertical or sloping position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/04—Solvent extraction of solutions which are liquid
- B01D11/0446—Juxtaposition of mixers-settlers
- B01D11/0457—Juxtaposition of mixers-settlers comprising rotating mechanisms, e.g. mixers, mixing pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/40—Regeneration or reactivation
- B01J31/4015—Regeneration or reactivation of catalysts containing metals
- B01J31/4053—Regeneration or reactivation of catalysts containing metals with recovery of phosphorous catalyst system constituents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J38/00—Regeneration or reactivation of catalysts, in general
- B01J38/48—Liquid treating or treating in liquid phase, e.g. dissolved or suspended
- B01J38/50—Liquid treating or treating in liquid phase, e.g. dissolved or suspended using organic liquids
- B01J38/56—Hydrocarbons
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/025—Purification; Separation; Stabilisation; Desodorisation of organo-phosphorus compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2231/00—Catalytic reactions performed with catalysts classified in B01J31/00
- B01J2231/30—Addition reactions at carbon centres, i.e. to either C-C or C-X multiple bonds
- B01J2231/32—Addition reactions to C=C or C-C triple bonds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/02—Compositional aspects of complexes used, e.g. polynuclearity
- B01J2531/0261—Complexes comprising ligands with non-tetrahedral chirality
- B01J2531/0266—Axially chiral or atropisomeric ligands, e.g. bulky biaryls such as donor-substituted binaphthalenes, e.g. "BINAP" or "BINOL"
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/80—Complexes comprising metals of Group VIII as the central metal
- B01J2531/84—Metals of the iron group
- B01J2531/847—Nickel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/0234—Nitrogen-, phosphorus-, arsenic- or antimony-containing compounds
- B01J31/0235—Nitrogen containing compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/0234—Nitrogen-, phosphorus-, arsenic- or antimony-containing compounds
- B01J31/0255—Phosphorus containing compounds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
Definitions
- the invention relates to recovery of catalyst and ligand from a hydrocyanation reaction product mixture comprising organic dinitriles using liquid-liquid extraction.
- US Patent No. 3,773,809 describes a process for the recovery of Ni complexes of organic phosphites from a product fluid containing organic nitriles produced by hydrocyanating an ethylenically unsaturated organic mononitrile such as 3-pentenenitrile through extraction of the product fluid with a paraffin or cycloparaffin hydrocarbon solvent. It describes that the ratio of mononitrile to dinitrile must be 0.65 or less to obtain effective recovery, with efficiency improving as the ratio is reduced. Therefore, when hydrocyanation reaction conditions produces a mononitrile to dintrile ratio greater than 0.65, mononitrile must be removed from the product mixture before extraction is performed.
- a further object of the invention is to delineate operating conditions whereby economical recovery of the catalyst is feasible.
- SUMMARY OF THE INVENTION Disclosed herein is a process for recovering diphosphite-containing compounds from a mixture comprising diphosphite-containing compounds and organic mononitriles and organic dinitriles, using liquid-liquid extraction, wherein the molar ratio of organic mononitrile present to organic dinitrile is from about 0.65 to about 2.5 and wherein the extraction solvent is a saturated or unsaturated alkane or saturated or unsaturated cycloalkane.
- a Lewis base compound selected from the group consisting of monodentate phosphite ligand, alcohol, water, organoamines, ammonia, and basic resin
- the processes of the present invention involve methods for recovering diphosphite-containing compounds from a mixture comprising diphosphite-containing compounds and organic dinitriles, using liquid- liquid extraction.
- catalysts comprising diphosphite complexes of Ni allow recovery via liquid-liquid extraction to occur at a higher ratio of organic mono-nitrile to organic dinitrile than described in US Patent 3,773,809.
- extraction efficiency is still maximized as the mononitrile to dinitrile ratio is reduced, we have successfully demonstrated catalyst recovery at mononitrile to dinitrile ratios as high as 2.3, which is significantly higher than that reported in US 3,773,809.
- the preferred mononitrile to dinitrile ratio range is 0.01 to 2.5.
- the most preferred range is 0.01 to 1.5.
- weakly Lewis basic compounds such as water or alcohols
- strongly Lewis basic compounds such as ammonia, aryl- or alkyl amines, such as pyridine or triethylamine
- basic resins such as Amberlyst 21 ® , a commercially available basic resin made by Rohm and Haas, can reduce or eliminate the inhibiting effect of Lewis acid on catalyst recovery.
- Suitable ligands for the present invention are bidentate phosphorous-containing ligands selected from the group consisting of bidentate phosphites, and bidentate phosphinites.
- Preferred ligands are bidentate phosphite ligands.
- the preferred bidentate phosphite ligands are of the following structural formulae:
- I, II and III R is phenyl, unsubstituted or substituted with one or more Ci to C ⁇ 2 alkyl or Ci to C ⁇ 2 alkoxy groups; or naphthyl, unsubstituted or substituted with one or more Ci to C ⁇ 2 alkyl or Ci to C 12 alkoxy groups; and Z and Z 1 are independently selected from the group consisting of structural formulae IV, V, VI, VII, and VIII:
- R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , and R 9 are independently selected from the group consisting of H, Ci to C-
- R >1 l 0 u is H or Ci to C i2 alkyI
- R 11 and R 12 are independently selected from the group consisting of
- R 13 is Ci to C ⁇ 2 alkyl or C 6 to Cio aryl, unsubstituted or substituted. with Ci to C alkyl ;
- Y is O, S, or CH(R 14 ); R 14 is H or Ci to C 12 alkyl;
- R 15 is selected from the group consisting of H, Ci to C ⁇ 2 alkyl, and
- Ci Ci to C12 alkoxy and CO 2 R 16 ;
- R 16 is Ci to C 12 alkyl or C 6 to C 10 aryl, unsubstituted or substituted with Ci to C alkyl.
- Ci to C ⁇ 2 alkyl, and Ci to Ci 2 alkoxy groups may be straight chain or branched.
- bidentate phosphite ligands that are useful in the present process include those having the formulae IX to XXXII, shown below wherein for each formula, R 17 ⁇ is selected from the group consisting of methyl, ethyl or isopropyl, and R 18 and R 19 are independently selected from H or methyl:
- bidentate phosphites are of the type disclosed in US Patents 5,512,695; 5,512,696; 5,663,369; 5,688,986; 5,723,641 ; 5,847,191 ; 5,959,135; 6,120,700; 6,171 ,996; 6,171 ,997; 6,399,534; the disclosures of which are incorporated herein by reference.
- Suitable bidentate phosphinites are of the type disclosed in US Patents 5,523,453 and 5,693,843, the disclosures of which are incorporated herein by reference.
- the present invention also pertains to an economical method for recovering phosphite and Ni diphosphite complexes from a hydrocyanation reaction product mixture comprised of organic dinitriles using liquid-liquid extraction.
- values for extraction coefficient are the ratio of weight fraction of catalyst in the extract (hydrocarbon phase) versus the weight fraction of catalyst in the raffinate (organonitrile phase). An increase in extraction coefficient results in greater efficiency in recovering catalyst. Examples 1-5:
- Table 1 Catalyst and ligand extraction coefficient for various ratios of mononitriles to dinitriles.
- Examples 6 and 7 show that increasing temperature allows more effective catalyst recovery at limited holdup time.
- a mixture comprised predominantly of organic dinitriles and a Ni diphosphite complex, the structure of the diphosphite ligand being shown in Structure IX (where R17 is isopropyl, R18 is H, and R19 is methyl) and ZnCI 2 (equimolar with Ni) was divided into two portions. One portion was batch liquid-liquid extracted at 40°C, and the other at 50°C, with an equal weight of cyclohexane. Both portions were sampled with time and the progress of the catalyst recovery into the extract phase is shown in Table 2 as the percent of the final steady state value achieved at a given time.
- Table 2 Concentration of Diphosphite ligand with time in the extracting solvent phase.
- Examples 9 -20 illustrate the beneficial impact on catalyst recovery of adding a monophosphite to the catalyst mixture. They utilize a common experimental protocol as follows: A mixture comprised pentenenitrile and adiponitrile (in a ratio of 0.3) and a Ni diphosphite complex (2-5 wt%) and ZnCI 2 (equimolar with Ni) and very small amounts ( ⁇ 0.3 wt%) of monophosphites (present as side products of the ligand synthesis) was divided into three portions. Different monophosphites were added to the second and third portion in each example as shown in Table 4 to bring the monophosphite concentration up to 5wt%. Each portion was batch extracted with an equal weight of cyclohexane at 50°C for 30 minutes and then allowed to cool to 25°C for one hour and sampled at room temperature. The measured catalyst extraction coefficients are shown in Table 4.
- Examples 21 - 32 show that treatment of catalyst containing solutions with anhydrous ammonia, an amine resin or a soluble organic amine, improves the extraction efficiency.
- a mixture comprising predominantly of organic dinitriles and a Ni diphosphite complex, with the diphosphite ligand shown in Structure IX (where R17 is isopropyl, R18 is H, and R19 is methyl) and ZnCI 2 (equimolar with nickel) was divided into two portions. One portion was treated with excess ammonia by bubbling anhydrous ammonia through the mixture and the other portion was untreated for comparison. Both ammonia-treated and untreated portions were separately liquid-liquid extracted using cyclohexane in a Karr type column. Catalyst recovery was complete for the ammonia-treated mixture but only 76% recovery was found from the untreated mixture.
- Example 22 Example 22:
- a mixture comprised predominantly of organic dinitriles and a Ni diphosphite complex, with the diphosphite ligand shown in Structure IX (where R17 is isopropyl, R18 is H, and R19 is methyl) and ZnCI 2
- Example 23 A mixture comprised predominantly of organic dinitriles and a Ni diphosphite complex, the structure of the diphosphite ligand being shown in Structure XXII (where R17 is methyl, R18 is methyl and R19 is H), and ZnCI 2 (equimolar with nickel) was divided into two portions. One portion was treated by contacting with an equal weight of Amberlyst 21 resin, and the other portion was untreated for comparison. Both resin-treated and untreated portions were separately liquid-liquid batch extracted with an equal weight of cyclohexane. Catalyst recovery was 91 % for the resin- treated mixture but only 45% recovery was found from the untreated mixture.
- Catalyst mixtures derived from pentenenitrile hydrocyanation comprised of pentenenitrile and dinitriles (predominantly adiponitrile) in a ratio of about 0.3, a Ni diphosphite catalyst (1.5 wt%), and ZnCI 2 (about 0.25 wt%) were divided into three portions and the second and third portion treated either with Amberlyst A-21 resin (1 volume of the Amberlyst A-21 ® resin to 2 volumes of dinitrile solution), or pyridine and heated at 50°C. An equal weight of cyclohexane was added to each portion, heated to 50°C and agitated vigorously, and then allowed to settle at 50°C for about 30 minutes. Samples were carefully withdrawn from top and bottom liquid phases. The top phase being the solvent or extract phase, the bottom being the raffinate phase. Analysis was done for all samples. The results are shown in Table 5.
- Example 36 - 43 use the same common protocol for treatment with anhydrous NH 3 .
- Catalyst mixtures derived from pentenenitrile hydrocyanation comprised of entenenitrile and dinitriles (predominantly adipontrile) in a ratio of about 0.3, a Ni diphosphite catalyst (1-1.5 wt%), and ZnCI 2 (about 0.2 wt%) were divided into two portions. One portion was left untreated. The second portion was treated by bubbling NH 3 through the solution for 10 minutes, followed by nitrogen to remove any unreacted NH 3 . An equal weight of cyclohexane was added to each portion and agitated vigorously at room temperature, and then allowed to settle. Samples were carefully withdrawn from top and bottom liquid phases. The top phase being the solvent or extract phase, the bottom being the raffinate phase. Analysis was done for all samples. The results are shown in Table 6.
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US338567 | 2003-01-08 | ||
US10/338,567 US6936171B2 (en) | 2003-01-08 | 2003-01-08 | Process for catalyst recovery from hydrocyanation product mixtures |
PCT/US2004/000375 WO2004062765A1 (en) | 2003-01-08 | 2004-01-07 | Process for catalyst recovery from hydrocyanation product mixtures |
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EP1581323A1 true EP1581323A1 (en) | 2005-10-05 |
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US (1) | US6936171B2 (en) |
EP (1) | EP1581323B1 (en) |
CN (1) | CN100386128C (en) |
AT (1) | ATE475467T1 (en) |
DE (1) | DE602004028336D1 (en) |
MY (1) | MY135238A (en) |
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FR2854891B1 (en) | 2003-05-12 | 2006-07-07 | Rhodia Polyamide Intermediates | PROCESS FOR PREPARING DINITRILES |
DE102004050935A1 (en) * | 2004-10-18 | 2006-04-20 | Basf Ag | Extraction of nickel (0) complexes from nitrile mixtures with reduced leaching |
CN101460229A (en) * | 2006-04-07 | 2009-06-17 | 巴斯夫欧洲公司 | Method for the separation of nickel(0) complexes and phosphorous-containing ligands from nitrile mixtures |
US7880028B2 (en) | 2006-07-14 | 2011-02-01 | Invista North America S.A R.L. | Process for making 3-pentenenitrile by hydrocyanation of butadiene |
US7709674B2 (en) | 2006-07-14 | 2010-05-04 | Invista North America S.A R.L | Hydrocyanation process with reduced yield losses |
US7659422B2 (en) * | 2006-07-14 | 2010-02-09 | Invista North America S.A.R.L. | Hydrocyanation process with reduced yield losses |
US7709673B2 (en) * | 2006-07-14 | 2010-05-04 | Invista North America S.A R.L. | Process for making 3-pentenenitrile by hydrocyanation of butadiene |
US7919646B2 (en) | 2006-07-14 | 2011-04-05 | Invista North America S.A R.L. | Hydrocyanation of 2-pentenenitrile |
EP2229354B1 (en) | 2008-01-15 | 2013-03-20 | Invista Technologies S.à.r.l. | Process for making and refining 3-pentenenitrile, and for refining 2-methyl-3-butenenitrile |
WO2009091790A1 (en) | 2008-01-15 | 2009-07-23 | Invista Technologies S.A.R.L. | Hydrocyanation of pentenenitriles |
KR20130041172A (en) | 2010-07-07 | 2013-04-24 | 인비스타 테크놀러지스 에스.에이.알.엘. | Process for making nitriles |
WO2013095853A1 (en) | 2011-12-21 | 2013-06-27 | Invista North America S.A R.L. | Extraction solvent control for reducing stable emulsions |
JP2015503511A (en) * | 2011-12-21 | 2015-02-02 | インヴィスタ テクノロジーズ エスアエルエル | Extraction solvent control to reduce stable emulsions |
EP2794046B1 (en) | 2011-12-21 | 2016-02-03 | Invista Technologies S.A R.L. | Extraction solvent control for reducing stable emulsions |
EP2794045B1 (en) | 2011-12-21 | 2016-12-21 | Invista Technologies S.à.r.l. | Extraction solvent control for reducing stable emulsions |
WO2014205195A1 (en) * | 2013-06-20 | 2014-12-24 | Invista Technologies S.A.R.L. | Extraction solvent control for reducing stable emulsions |
WO2014205188A1 (en) | 2013-06-20 | 2014-12-24 | Invista North America S.A.R.L. | Extraction solvent control for reducing stable emulsions |
WO2014205190A1 (en) | 2013-06-20 | 2014-12-24 | Invista Technologies Sàrl | Extraction solvent control for reducing stable emulsions |
WO2014205183A1 (en) | 2013-06-20 | 2014-12-24 | Invista Technologies S.A.R.L. | Extraction solvent control for reducing stable emulsions |
US9676800B2 (en) | 2013-06-20 | 2017-06-13 | Invista North America S.A.R.L. | Extraction solvent control for reducing stable emulsions |
CN105531257B (en) | 2013-07-17 | 2019-12-17 | 英威达纺织(英国)有限公司 | Separation of solvent from nickel catalyst by distillation |
CN103408178B (en) * | 2013-08-22 | 2015-07-22 | 太原理工大学 | Process for recycling desulfurization catalyst from HPF (Hydroquinone, PDS, Ferrous Sulfate) coking desulfuration waste liquid |
CN107207406B (en) | 2014-06-27 | 2019-12-03 | 英威达纺织(英国)有限公司 | The integration method of nitrile is manufactured with the liquid-liquid extraction of enhancing |
EP3160907B1 (en) | 2014-06-27 | 2019-11-20 | INVISTA Textiles (U.K.) Limited | Enhanced extraction of impurities from mixture comprising nitriles |
CN113044904B (en) * | 2021-05-10 | 2022-06-03 | 中国科学院过程工程研究所 | Extracting agent and method for synergistically extracting refractory pollutants and phenol in coal chemical industry wastewater |
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Publication number | Publication date |
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EP1581323A4 (en) | 2008-07-02 |
WO2004062765A1 (en) | 2004-07-29 |
CN1723067A (en) | 2006-01-18 |
US6936171B2 (en) | 2005-08-30 |
MY135238A (en) | 2008-03-31 |
TW200417412A (en) | 2004-09-16 |
US20040140263A1 (en) | 2004-07-22 |
DE602004028336D1 (en) | 2010-09-09 |
ATE475467T1 (en) | 2010-08-15 |
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EP1581323B1 (en) | 2010-07-28 |
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